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L-R: Dr Craig McKenzie, Prof Robyn O'Hehir,
Associate Professor Menno van Zelm
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Allergen immunotherapy is the only treatment to modify the natural course of allergy to ryegrass pollen – or spring hay fever – rather than just alleviating symptoms. Treatment involves repeated exposure of patients to allergen extracts either by injection or tablet, ‘training’ the immune system to clear these allergens without generating an allergic response.
But it’s not known exactly how this immunotherapy works.

